Can such things be,
And overcome us like a summer’s cloud,
Without our special wonder? You make me strange
Even to the disposition that I owe,
When now I think you can behold such sights,
And keep the natural ruby of your cheeks,
When mine is blanched with fear.
– William Shakespeare
Macbeth, Act 3, Scene 4. Macbeth uses a simile to equate the strange appearance of Banquo’s ghost at his banquet to a summer thunderstorm. He questions himself in this speech to Lady Macbeth, because he assumes that she and the others have also seen the ghost and yet she isn’t struck pale with fear like him.